Response of Multi-strip Multi-gap Resistive Plate Chamber

TL;DR

This paper presents the development and detailed response analysis of a Multi-strip Multi-gap Resistive Plate Chamber (MMRPC) with a 40x20 cm active area, demonstrating high efficiency and sub-100 ps timing resolution for detecting minimum ionizing particles.

Contribution

The study introduces a newly developed MMRPC with detailed characterization, including timing, position resolution, and efficiency, and compares avalanche and streamer mode responses.

Findings

Time resolution of 91.5 ps after correction.

Position resolution of 2.8 cm (along strip) and 0.58 cm (across strip).

Detection efficiency of 95.8%.

Abstract

A prototype of Multi-strip Multi-gap Resistive Plate chamber (MMRPC) with active area 40 cm $\times$ 20 cm has been developed at SINP, Kolkata. Detailed response of the developed detector was studied with the pulsed electron beam from ELBE at Helmholtz-Zentrum Dresden-Rossendorf. In this report the response of SINP developed MMRPC with different controlling parameters is described in details. The obtained time resolution ($\sigma_t$) of the detector after slew correction was 91.5$ \pm $3 ps. Position resolution measured along ($\sigma_x$) and across ($\sigma_y$) the strip was 2.8$\pm$0.6 cm and 0.58 cm, respectively. The measured absolute efficiency of the detector for minimum ionizing particle like electron was 95.8$\pm$1.3 $\%$. Better timing resolution of the detector can be achieved by restricting the events to a single strip. The response of the detector was mainly in avalanche mode but a few percentage of streamer mode response was also observed. A comparison of the response of these two modes with trigger rate was studied